69 lines
2.3 KiB
Java
69 lines
2.3 KiB
Java
/*
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* Copyright (c) 2005, 2018, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package nsk.share.gc;
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public class Matrix {
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private int cellSize;
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private int matrixSize;
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private Cell matrix[][];
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private int nKnockedOut; // number of cells "nulled out"
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public Matrix(int matrixSize, int cellSize) {
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this.matrixSize = matrixSize;
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this.cellSize = cellSize;
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matrix = new Cell[matrixSize][matrixSize];
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populate();
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}
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public void populate() {
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for (int i = 0; i < matrixSize ; i++) {
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for( int j = 0 ; j < matrixSize ; j++) {
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matrix[i][j] = new Cell(cellSize, i);
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}
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}
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}
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public int returnArrayBound() {
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return matrixSize - 1;
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}
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public synchronized void clear(int i, int j) {
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matrix[i][j] = null;
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++nKnockedOut;
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}
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public synchronized void repopulate(int i, int j) {
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matrix[i][j] = new Cell(cellSize, i + j);
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--nKnockedOut;
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}
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public synchronized void resetCellCount() {
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nKnockedOut = 0;
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}
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public synchronized int getCellCount() {
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return nKnockedOut;
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}
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}
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